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Finding the Fourth Proportional to 378,204.89, 567,472.26 and 125,518.91

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Solution

The fourth proportional to 378,204.89, 567,472.26 and 125,518.91 is: 188,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,204.89 : 567,472.26 = 125,518.91 : x
  2. Step 2: Convert to fraction form
    378,204.89/567,472.26 = 125,518.91/x
  3. Step 3: Cross multiply
    378,204.89x = 567,472.26 × 125,518.91
  4. Step 4: Simplify right side
    378,204.89x = 71,228,496,693.08
  5. Step 5: Solve for x
    x = 71,228,496,693.08/378,204.89
  6. Step 6: Final answer
    x = 188,333.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.